Railway-car bolster.



. J. M. HANSEN, .RAILWAY UAR BOLSTER. APPLICATION rum .uu. 24, 19oe. 19 09 588, PatentedJan; 12, 1909.

MH Q WITNESSES.

mm M. HANSEN, or PITTSBURG, PENNSYLVANIA...

. RAILWAY-OAR BoLs'rER.

Specification of Letters Patent.

Patented Jan. '12, 1909.,

Application filed January '24, 1908: Serial No. $12,488.

To all wiwm it may concern: Be it known that I, JOHN M. HANSEN, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Railway-Oar Bolsters; and'I do hereby declare the following to be a full, clear, and exact description thereof.

This invention relates to bolsters for railway cars, such as truckbolsters.

The object of the invention is to provide a bolster which is simple and cheap of con struction and which is so designed as to effectively take care of lateral stresses due to end shock as well as the vertical load.

' The invention comprises a bolster constructed as herein described and claimed.

In the accompanying drawing Figure 1 is a plan view of a part of a truck bolster constructed according to my invention; Fig. 2

is a side elevation thereof; Fig. 3 'isan end view of the same ,Fig'. 4. is a vertical section on the line 4-4. Fig. 1; Fig. 5 is a similar view on the line 5- 5 Fig". 1; and Fig. 6 is a similar view on the line 6-43 Fig 1.

. The main portion of the body of the bolster comprises an inverted trough-shaped member, preferably formed from a single integral plate, and having the top plate 1,

which is the bottom of the inverted trough,

and the two vertical or side plates 2, saidv trough being open at the bottom as shown. The top plate 1 forms the compression member of the bolster, and the tension members are formed by suitable flanged bars, such as an le bars 4:, one riveted to the free edge of eac of the side lates 2, and preferably on the inner faces t ereof as shown, said angle bars following the contour of the edges of said side plates, and extending out to the end of the bolster. The bolster is made of greater depth at its middle so as to get sufiicient vstrength, tapering toward the ends, and having theextreme end portions formed with parallel top and bottom edges so as to give ahorizontal bearing on the springs. Preferably the top line of the bolster is straight as shown.

The trough sha ed bolster described is 'braced at the mid le portion by the center brace 7 formed as a casting and made to fit nicely within the trough shaped body, bearing against the top plate 1 thereof, and preferably having the lower and shaped to fit neatly against the angle bars 4, so that said casting practically forms a strut between the top plate of the bolster ,legs of the angle bars 1. This casting is sothe end, lying between the top plate of the. bolster and the horizontal legs of the angle.

shape and provided with suitable cross webs for. strengthening the-same.- They are Secured in place by suitable countersunk rivets 16, driven through the side. .lates of 18 extending through the horizontal flan es of theangle-bars Land bottom. wall of t e casting 1 1 and. form'sa bearing resting on the springs. Column guides 19 are secured to the side plates byriveit's as shown, and side bearings 20 of-any' approved type are secured to the bop'plate; 1'." A brake lover The construction of bolsterdescrlbed may also be adapted for a body bolster by placing the trough rightside u and formln'g the free edges of the troug on straight lines" and getting the increased depth by bowing the bottom of the trough downward. 1

The-bolster described is simple and cheap 'ofconstrnction, consisting mainly of three pieces, namely, the trough body member stron not only as against vertical loads, but a so effectively takes care of the stresses due to endshock on account of its great lateral width. It practically has no partsi'project-ing laterally beyond the trough shaped body, so that it can be readilygotten into and out of the truck. Y

What I claim is:

3. A railway car bolster adapted to be cured in place by suitable means, such as rivets 9 driven through the side plates 2 of fulcrum 21 is also rivctedto the top plate 1.-

and the horizontal The ends of the bolster are stiffened .means' of a casting 14 which entirely fills 3 bars i. These castings are of general box and the twotension bars 4. The bolster is l i 1. A railway car bolster comprising an 75 the bolster. A plate 17 is secured y rivets depth at its central portion, and angle bars mounted in the side frame and removed i therefrom comprising an inte ral plate pressed to trough form, the si es having their atest depth at the central portion and t e top being eo-terminous with the sides.

4. A railway car bolster adapted to be used with diamond side frame trucks adjustable therein and removable therefrom, comprising an integral plate pressed to' trou h form, the sides having their greatest dept at the central portion.

5. A railway car bolster comprisin an integral plate ressed to trou h form aving top and si e portions wit its greatest riveted to the free edges of said side portions. Y

6. A railway car bolster comprising-an integral plate ressed to trough formwith' top and side p ates, and angle bars riveted to the inner faces of the side plates at their free edges.

7. A railway car bolster comprising an integral plate pressed to trough form with. top and slde plates, and angle bars riveted to l the free edges of the side plates, and center; and side bearings secured to the top plateof the trough. 8. A railway car bolster comprismg an integral plate pressed to. .;trough form with top and side ates and anglelbars riveted integral plate 1 dept trough earin against the top plate thereof ;and the an le ars secured to the freeedges.

9. A rai way car bolster comprising an ressed to trough form with top and side p ates and angle bars riveted to the inner faces of the side plates at their free ed es, a center brace fitting within said trough earing against the top plate thereof and the angle bars secured to the free edges and a center bearing plate secured to said top plate and in line with said center brace.

10. A railway car bolster comprisin an inverted trough having top and side plates and being open at the bottom and of reat;

est depth at its centralportion, the end tions of said bolster having horizontal top and bottom faces, and castings filling the ends of said trough. t I 11. A railway car bolster havin side portions" of general trough bein open at the bottom with. itsgreatest at the central portion, and having angle" bars riveted to the side plates along their free edges.

.In tfesti "ony whereof, I the said Jon)? M.

HANSEN, have hereunto set my hand.

" JOHN HANSEN.

Witnesses:- x U ROBERT C. To'rrEN,

shape and 

